Daily Amino Acid

Daily Amino Acid

21st Century4.6 (8,733 ratings)
Format:Tablet Quantity: 120 Tablet(s) · 120 servings
$9.99 $0.08 per serving
iHerbLowest$9.99Amazon$9.99

Product analysis

47 out of 100

Daily Amino Acid brings a range of amino acids together, but many forms are unspecified, making precise ingredient comparisons harder.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality30

The histidine form is a favorable ingredient choice. Many other forms are unspecified or cannot be judged confidently, leaving quality across the combination less clear.

Ingredient Transparency60

Amounts are disclosed throughout the formula, allowing serving comparisons. Most forms and the proportions within the calcium combination are omitted.

Value For Money36

A low serving cost supports value when considered for isoleucine, but several other amino acids are expensive for the amounts supplied. The uneven picture and uncertainty elsewhere prevent a clear value conclusion for the whole mixture.

Customer Satisfaction88

Customer ratings are very positive across thousands of buyers. The broad feedback supports a clear satisfaction pattern without establishing a health or fitness benefit.

Product Focus34

The formula supplies a broad combination of amino acids with other nutritional components. A specific health or performance benefit cannot be described confidently.

Format
Tablet
Container
120 Tablet(s)
Per serving
$0.08
Customer rating
4.6 · 8,733 ratings
Report analysis

Ingredients

IngredientAmount per servingScore
Calcium (Calcium Carbonate, Dicalcium Phosphate)
 150 mg
Sodium
5 mg
L-Histidine (L-Histidine Hydrochloride)
 17 mg 45
L-Isoleucine
63 mg 68
L-Leucine
105 mg 48
L-Lysine (L-Lysine Hydrochloride)
 93 mg 40
DL-Methionine
21 mg
L-Cysteine (L-Cysteine Hydrochloride)
 11 mg
L-Phenylalanine
32 mg 41
L-Tyrosine
31 mg
L-Threonine
69 mg
L-Valine
58 mg 47
Gluten Free Adults 18–50
Report overview
Isoleucine · 63 mg OverallScore68
A- Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyA+ Value
Each serving provides 63 mg of L-isoleucine at a low cost per serving. No third-party testing claim is recorded in the available information.
How this ingredient is rated

Active Ingredient Quality & Bioavailability86

The isoleucine is listed as L-isoleucine. The available information does not specify a fermented or plant-based source.
Free-Form vs. Protein-Bound
The isoleucine is listed as L-isoleucine.
Sourcing and Purity Signals
The available information does not specify a fermented or plant-based source.

Dose, Safety & Label Transparency35

Each serving provides 63 mg of isoleucine. No third-party testing claim is recorded in the available information.
Isoleucine Potency per Serving
Each serving provides 63 mg of isoleucine.
Label Transparency & Blend Disclosure
The isoleucine amount is stated separately.
Third-Party Safety & Sport Testing
No third-party testing claim is recorded in the available information.

Value100

The cost per serving is low.
Price per Serving Efficiency
The cost per serving is low.
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Lysine (L-Lysine Hydrochloride) · 93 mg OverallScore40
B- Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value
The serving declares 93 mg of lysine. The full product cost per estimated amount of lysine is very high. The source is L-Lysine Hydrochloride. No grade or sourcing assurance claim is identified.
How this ingredient is rated

Active Ingredient Quality & Bioavailability72

The source is L-Lysine Hydrochloride. No grade, vegan, fermentation or manufacturing-practice claim is identified.
Lysine Chemical Form & Sourcing
The source is L-Lysine Hydrochloride.
Purity and Grade Signals
No grade, vegan, fermentation or manufacturing-practice claim is identified.

Dose, Safety & Label Transparency23

The serving declares 93 mg of lysine. Ordinary excipients or capsule materials are identified.
Lysine Dose by Declared Basis
The serving declares 93 mg of lysine.
Clean Label & Additives
Ordinary excipients or capsule materials are identified.

Value10

The full product cost per estimated amount of lysine is very high.
Price Per 1000mg of Lysine
The full product cost per estimated amount of lysine is very high.
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Valine · 58 mg OverallScore47
B- Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyF Value
A serving provides 58 mg of valine, a small contribution for intense exercise, at a high cost per gram. It uses free-form L-valine. No external testing or quality certification is indicated.
How this ingredient is rated

Active Ingredient Quality & Bioavailability71

It uses free-form L-valine. No external testing or quality certification is indicated.
Valine Isomer and Source Type
It uses free-form L-valine.
Third-Party Sport Certifications
No external testing or quality certification is indicated.

Dose, Safety & Label Transparency40

The label individually lists 58 mg of valine per serving, a small contribution for intense exercise.
Valine Dosage Efficacy
A serving provides 58 mg of valine, a small contribution for intense exercise.
Label Transparency and Proprietary Blends
The valine amount is individually listed as 58 mg per serving.

Value10

The cost per gram of valine is high.
Price Per Gram of Valine
The cost per gram of valine is high.
View ingredientView products
83 Performance

Branched-Chain Amino Acids

Lake Avenue Nutrition
Clearly identified L-leucine, L-isoleucine, and L-valine provide much larger amounts than the original trace doses. Leucine remains below a strong standalone trigger, but the focused formula has substantially better active depth.
82 Performance

Branched-Chain Amino Acids

NOW Sports
The serving supplies 1,600 mg leucine and 650 mg each of isoleucine and valine as clear L-isomers. It covers fewer amino acids, but the branched-chain doses are far more meaningful than the original.
79 Performance

Branched Chain Amino Acids (Free Form)

Life Extension
Free-form branched-chain amino acids avoid protein digestion and provide substantially larger amounts than the original tablets. The serving is still modest and drops histidine, phenylalanine, lysine, and threonine.
80 Budget

Mega-Size BCAA 1000 Caps

Optimum Nutrition
No supplied candidate is strictly cheaper per serving, but this is the nearest-cost option and supplies 500 mg leucine plus 250 mg each of isoleucine and valine. The amounts remain modest, yet they are substantially larger than the original trace doses.
84 Budget

BCAA 3200 mg

Best Naturals
It is not strictly cheaper per serving, but 3,200 mg of clearly listed branched-chain amino acids provides far more usable material for a modest cost increase. The formula omits the original broader essential-amino coverage and calcium.
66 Budget

Essential Aminos

Pure Encapsulations
It is not cheaper per serving, but it is the closest broad essential-amino candidate after the two lower-cost branched-chain products. L-methionine avoids the original DL form, although every individual amount is still too small for focused supplementation.
76 Value

The Original Smash Apple

XTEND
Substantial branched-chain amino amounts, 2,500 mg glutamine, and a large package provide far more useful active material per serving. It costs more than the original, but the dose depth better justifies ongoing use despite an opaque electrolyte blend.
68 Value

BCAA Plus Branched Chain Amino Acids

Solgar
Clearly disclosed branched-chain amino acids and vitamin B6 provide more active depth than the original trace-dose blend. The combined amino amount is still low and vitamin B6 is high, so value remains mixed.
79 Value

Amino-9 Essentials Powder

NOW Sports
Nine clearly identified essential amino acids provide broader and much larger amounts than the original. Several individual doses remain below focused targets, but the coherent powder formula offers more useful active value.
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